Small Modular Reactors
Like Duolingo, but for Small Modular Reactors. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
A short one: 9 levels across 2 sections, about 18 minutes end to end, roughly 4 days at five minutes a day. It moves through The Modular Shift and Deploying the Future. It assumes you already know the basics.
Free forever · No credit card · iPhone & Android

Key ideas in Small Modular Reactors
- Parallel construction in modularization
- Economy of multiples and the learning curve
- Controlled indoor environments
- Mass production vs size
- Reducing interest costs
- Spreading fixed costs
- How modularization reduces the financial risks of nuclear projects
- The shift from economy of scale to economy of multiples
- Rail and road clearance limits the maximum diameter of the reactor pressure vessel
- Placing steam generators inside the vessel eliminates large-diameter primary piping
- Physical size limits require higher power density to meet energy output targets
- Removing external loops significantly lowers the risk of a Large Break Loss of Coolant Accident
- The reactor's weight must stay within the load-bearing capacity of standard heavy-haul trucks
- The compact internal layout reduces the number of penetrations through the reactor's skin
- The constraints transportability places on SMR design
- The safety and design benefits of the iPWR configuration
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives Small Modular Reactors the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
How does the 'economy of multiples' approach aim to lower the cost of nuclear power?
Get it right to open this lesson and 8 more in the app.
Where Small Modular Reactors takes you
Explore the shift from massive nuclear megaprojects to factory-built, modular power. Learn how passive safety and advanced fuel cycles are redefining the future of the grid.
- 1
The Modular Shift
- The Factory-Built Core
- Passive Safety Systems
- 2
Deploying the Future
- Microreactors and Remote Power
- Advanced Fuel and Waste
2 sections · 4 units · 9 levels. Built to play, not to enroll.
You pick the voice
Small Modular Reactors is taught in the The Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start Small Modular Reactors today.
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